4 Commits

Author SHA1 Message Date
Andrew Kelley
c89aac85c4 better workaround for guaranteeing memory in coroutine frame
See #1194
2018-07-09 21:21:59 -04:00
Andrew Kelley
eb326e1553 M:N threading
* add std.atomic.QueueMpsc.isEmpty
 * make std.debug.global_allocator thread-safe
 * std.event.Loop: now you have to choose between
   - initSingleThreaded
   - initMultiThreaded
 * std.event.Loop multiplexes coroutines onto kernel threads
 * Remove std.event.Loop.stop. Instead the event loop run() function
   returns once there are no pending coroutines.
 * fix crash in ir.cpp for calling methods under some conditions
 * small progress self-hosted compiler, analyzing top level declarations
 * Introduce std.event.Lock for synchronizing coroutines
 * introduce std.event.Locked(T) for data that only 1 coroutine should
   modify at once.
 * make the self hosted compiler use multi threaded event loop
 * make std.heap.DirectAllocator thread-safe

See #174

TODO:
 * call sched_getaffinity instead of hard coding thread pool size 4
 * support for Windows and MacOS
 * #1194
 * #1197
2018-07-07 00:32:19 -04:00
Andrew Kelley
a3f55aaf34 add event loop Channel abstraction
This is akin to channels in Go, except:
 * implemented in userland
 * they are lock-free and thread-safe
 * they integrate with the userland event loop

The self hosted compiler is changed to use a channel for events,
and made to stay alive, watching files and performing builds when
things change, however the main.zig file exits after 1 build.

Note that nothing is actually built yet, it just parses the input
and then declares that the build succeeded.

Next items to do:
 * add windows and macos support for std.event.Loop
 * improve the event loop stop() operation
 * make the event loop multiplex coroutines onto kernel threads
 * watch source file for updates, and provide AST diffs
   (at least list the top level declaration changes)
 * top level declaration analysis
2018-07-02 14:38:11 -04:00
Andrew Kelley
0874a5ba77 std.atomic.queue - document limitation and add MPSC queue 2018-06-29 14:45:42 -04:00